}
		throw("runtime.newosproc")
	}
}

// mstart is the entry-point for new Ms.
// It is written in assembly, uses ABI0, is marked TOPFRAME, and calls netbsdMstart0.
func netbsdMstart()

// netbsdMstart0 is the function call that starts executing a newly
// created thread. On NetBSD, a new thread inherits the signal stack
// of the creating thread. That confuses minit, so we remove that

	// Call fn. This is an ABI0 PC.
	CALL	R12

	// It shouldn't return. If it does, exit.
	MOVL	$SYS__lwp_exit, AX
	SYSCALL
	JMP	-3(PC)			// keep exiting

TEXT ·netbsdMstart(SB),NOSPLIT|TOPFRAME,$0
	CALL	·netbsdMstart0(SB)
	RET // not reached

TEXT runtime·osyield(SB),NOSPLIT,$0
	MOVL	$SYS_sched_yield, AX
	SYSCALL
	RET

TEXT runtime·lwp_park(SB),NOSPLIT,$0

	PUSHAL
	CALL	runtime·emptyfunc(SB)
	POPAL

	// Call fn
	CALL	SI

	// fn should never return
	MOVL	$0x1234, 0x1005
	RET

TEXT ·netbsdMstart(SB),NOSPLIT|TOPFRAME,$0
	CALL	·netbsdMstart0(SB)
	RET // not reached

TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
	MOVL	$SYS___sigaltstack14, AX
	MOVL	new+0(FP), BX
	MOVL	old+4(FP), CX
	INT	$0x80
	CMPL	AX, $0xfffff001

	CMP	$0, R1
	BEQ	nog
	CMP	$0, R2
	BEQ	nog

	MOVD	R0, g_m(R1)
	MOVD	R1, g
nog:
	CALL	(R2)

	MOVD	$0, R0  // crash (not reached)
	MOVD	R0, (R8)

TEXT ·netbsdMstart(SB),NOSPLIT|TOPFRAME,$0
	CALL	·netbsdMstart0(SB)
	RET // not reached

TEXT runtime·osyield(SB),NOSPLIT,$0
	SVC	$SYS_sched_yield
	RET

TEXT runtime·lwp_park(SB),NOSPLIT,$0
	MOVW	clockid+0(FP), R0	// arg 1 - clockid

	MOVW R0, g_m(R1)
	MOVW R1, g

	BL runtime·emptyfunc(SB) // fault if stack check is wrong
	BL (R2)
	MOVW $2, R8  // crash (not reached)
	MOVW R8, (R8)
	RET

TEXT ·netbsdMstart(SB),NOSPLIT|TOPFRAME,$0
	BL ·netbsdMstart0(SB)
	RET // not reached

TEXT runtime·usleep(SB),NOSPLIT,$16
	MOVW usec+0(FP), R0
	CALL runtime·usplitR0(SB)
	// 0(R13) is the saved LR, don't use it
	MOVW R0, 4(R13) // tv_sec.low